Buzz Aldrin flew on Gemini 12 and Apollo 11 ... All that took was maybe 30 seconds or a minute to feel that I knew how to move around with great confidence, and that's all the later crews really ...

Buzz Aldrin, the former NASA astronaut, was medically evacuated from the South Pole, where he was visiting as part of a tourist group. (Adam Bettcher/Getty Images for WE ) For most people ...